Folding paper box



C- A. SPITTELL.

POL Y .a 6 NEE.. IIIIIIIIIII /m%/ M nun entrent CllRlSTlAN A. SPITTELL, OF NEW BRUNSYVCK, NEW JERSEY.

FOLDING PAPER BOEK.

SFECIFECATION forming part of Letters Patent No. 489,993, dated January 17, 1893.

Application filed May 21, 1892. Serial No. 433.8%. (No model.)

i a citizen of the United States, residing at New Brunswick, in the county of Middlesex and State of New Jersey, have invehted a new and useful Folding Paper Box, of which the fol-` lowing is a specification.

This invention relates to certain new and useful improvements `in paper boxes, and has special reference to that class of boxes made from paper ot a suitable nature, paste-board, veneer or other similar materials known as knock-down boxes, which are capable of being packed dat for shipment and storage, and when required for usemay be folded up into box form by a simple manipulation thereof as is now well understood in the art.

The present in ventionconsists of the pecu liar `and improved construction of the blank to provide corner or side iaps with terminating tongues adapted to be fitted in the adjacently situated slots and which are employed in holding the box in form Wheufolded into box shape. ,V

The object of this invention is to provide means for preventing the corners of the box from separating and resisting a tendency to- Ward disconnection thereof by any strain brought to bear against the same in any direction, but which may be readily separated 4 when so desired and properly manipulated.

In the draWings:-Figure l is a plan'view of the blank employed in forming the box. Fig. 2 is a perspective View of the box showing the parts thereof in connection with each other, and the lid to one side thereof. Fig. 3 is a perspective view showinga portion of the box in a folded position', and a part thereof unfolded. o, l

Similar numerals of reference are used to indicate corresponding parts in the several views. L f

Referring tothe drawingsfthe numeral l designates the blank which is of substantial rectangular form havicngsides 2 and ends 3 adapted to fold upward at right angles to the bot-v tom ll. The sides 2 have slits formed therein near the, opposite ends therein, the said slits being formed converging near their opposite ends as at G. The ends 3 are provided with'integral end flaps 7 whose extremeends are constructed with shouldered tonguesu 8,

the portions of said flaps extending toward the said tongues being beveled as at 9 and terminating in recesses l() Whichform with the adjacent edges of the tongues 81, shoul ln forming the parts into a box the sides 2 are arranged in vertical position relative to the bottom e, and the ends 3 are closed up against the oppositely situated end vedges of the said sides 2. The iiaps 7 are then bent around a portion of the sides2 and the tongues 8 are inserted in the slits 5 so that the shoulders thereof will bear against the converged portions of the said slits 5, and thereby lock the parts in close connection with each other. rlhe shoulders of the tongues 8 take under the converged port-ion 6 of the slits 5 as set forth, and as the said converged portions reduce the endsof the said slips, theV tongues are locked in connection therewith against accidental disengagement or strain that may be brought to bear thereon through the medium of the ends as Well as the side portion of the box, and thereby provide a convenient form of device. The converged or reduced end portions of the slits make the front Wall or that-nearest the ends of the box of each of said slits shorter than the innermost Walls, and said shorter Walls being less in length than the length across the said tongues, the latter are firmly secured in said slits.

ln bending the parts ol the box up -into position they turn on scores or creases at the several points which will be positioned proportionately to the size and nature ofthe box put up. The device as a Whole, including4 .both the cover and the box body, is arranged in loeke'd'position and in proper forni for' use Without the use of glue, cement o r other analogous material, and if desired the parts may be readily unlocked without injuring thebox. By folding the flaps 7 around the corners of the box, the latter is greatly strengthened.

It will be understood that the box may be made in varying sizes and any kind of stock may be employed in making the same.

The cover or lid l2 is of the same construction and arrangement as the box body itself; and is thereby lmade equally strong, and by means ot' the similarity of the construetionof the two parts the use eta multiplicityof dies in formation of the blanks is avoided. The i y aps on the ends run ont square toward the sides before the triangular portion of said flaps is formed to construct the shouldered ltongues which will give an extended bearing surface over the sides of the box at the corners thereof and thereby greatly strengthen the same, and giving the loose ends of the sides an extended and secure bearing surface. It will befurtherseen that the construction and employment of folded over edges to bind on'adjacently'situeted arts is whollyavoided in the constructionv an' arrangement of the box andlidonce-ver therefor, as has been setl forth. s

In locking, parts of' vthe boxl and the cover together, the shouldered tong-ues arequickly inserted in the slips aforesaid and will automatically lock themselves by engaging the reduced end portions of the said slips. 'lhis 2o latter feature of advantage is very convenient and makes it possible to s et up the parts of the box and lid inj-a ready and quick manner.

Having thusdescribed the invention what is claimed as new is:-

The herein described box having sides and ends adapted to be folded as set forth, the sides being formed with slotsv which 'have upper and lower converging end-walls to reduce the front parts of said slots toa less length than the rear portions of the saine, and the ends having flaps provided with tongues that have overhanging shoulders'that are adapted to. engage said slots and the shoulders brought to bear against the front reduced portions of said slots to lock the ends closed, the said flaps fitting over and strengthening-the corners of the box, the saidA shoulders being of greater length from one to the other across the tongues than the outermost Walls of the said slots, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aixcd my signature in the presence of twowitnesses.

CHRISTIANv A. sPITfrELL'. "Witnesses:

JOSEPH C. RAPPLEYEA, Jr., A. W. WINCKLER.. 

